Quier



(No Model.)

H. F. SAINT REQUIRE.

ROLLER MILL.

Patented Nov. 10,1885.

, i UNITED STATES PATENT OFFICE.

HENRY F. SAINT REQUIER, or PARIS, FRANCE, ASSIGNOR TO LA sooIETE ANONYME POUR LEs PROOEDES BREVETES DE FARINERIE SAINT RE- QUIEB, OF SAME PLACE.

ROLLER-MILL.

SPECIFICATION forming part of Letters Patent No. 330,264, dated November 10, 1885.

Application filed June 23, 1884. Serial No. 135,772. (No model.) Patented in France July 20. 1882, No. 150,207; in Belgium April 5, 1884, No. 64,747; in England April 8,1884,No. 6,134; in Italy April 12,1884, No. 16,715; in Spain July 28, 1884, No. 6,063, and in Austria August 29, 1884, No. 13,846.

To all whom it may concern:

Be it known that I, HENRY FERDINAND SAINT 'ItE UIEE, a citizen of the Republic of France, and residing in Paris, France, have invented certain Improvements in Roller- Mills,(for which I have obtained certificate of addition in France, dated April 4, 1884, to original Patent No. 150,207, July 20, 1882, also British Patent No. 6,134, April 8, 1884, Austrian Patent No. 13,846, August 29, 1884, Belgian Patent No. 64, 7 47 April 5, 1884, Spanish Patent No. 6,063, July 28,1884, and Italian Patent No. 16,715, April 12, 1884,) of which the following is a specification.

The object of my invention is to so construct the feeding devices of roller-mills that the grain will be fed to the crushing-rolls in a continuous stream of uniform thickness, with the individual particles of grain evenly distributed in a single layer over the entire surface, and this object I attain as fully described hereinafter.

In the accompanying drawings, Figure 1 is an elevation of my improved machine with one-half on the right-hand side of the dotted line 1 2 in section, and Fig. 2 is a view of parts of the two distributing feed-rollers detached.

The apparatus shown in the drawings is for convenience made with duplicate parts, one set on either side of the central dotted line 1 2, and each set in the present instance consists of three hoppers, two grooved distributrolls. The two delivering-openings of the twopart hopper A are controlled by regulatingslides B, adjustable by the hand-levers 0. Immediately below each de1ivery-opening of this hopper is a distributing-roll, B, having journals adapted to hearings in the side pieces, B, mounted on the frameVof the machine. This distributing-roll is grooved helicoidally, as illustrated in Fig. 2, the size of the grooves being proportioned to the coarseness of the grain to be treated. On opposite sides of the roll Dare fixed to the frame inclined guidingplates d, which may be termed a hopper, and below the discharge-opening of this hopper is a second distributing-roll, E, preferably of about twice the diameter of the roll D, and grooved with finer grooves. This roll E also has journals adapted to bearings in the side pieces, R, and has hopper-plate e to direct the grain onto the lower of the two crushingrolls F G. The roll F is mounted in fixed bearings I in the frame of the machine, while the rollG is carried in adjustable bearings K, on which bear the system of levers L L, and adjustable counter-weights P to vary the pressure of the roll G on the lower roll, F. O is the hopper to receive the crushed material from both sets of crushing-rolls, and T T are pivoted and counterweighted scrapers to keep the rolls clear.

The two sets of apparatus-one on each side of the machineare separated by a vertical partition, S. The distributing and crushing rolls are suitably geared together, as indicated by dotted lines, and are driven so as to revolve in the direction pointed out by the arrows.

The grain, flowing out of the hopperA, falls onto the first grooved roll, D, which attenuates or lengthens out the stream of grain, and thence the hopper d directs the stream onto the second roll, E, in a direction opposite to that in which the roll revolves. This second roll further thins and spreads out uniformly the stream of grain, which is then directed by the hopper eonto the lower crushing-roll, and here the stream receives its final spreading before it passes between the crushing-rolls. The roll E is driven at the same speed as the roll D; but, as it is of about twice the diameter of the latter, it affords a much larger surface for the grain to lodge in, and consequently to spread out upon. The function of these two rollers, it will be seen, is simply that of distributing and spreading out the grain into a uniform layer. The lower roll, F, however, which is of about twice the diameter of the roll E, serves both for the distribution and crushing of the grain. The hopper-plates d and e regulate the flow of the particles of grain and serve to distribute the stream breadthwise into a uniformly thin layer, while the rolls serve to thin the stream lengthwise.

The crushing-rollsF G may be either smooth or grooved,according to requirements and the nature of the substance under treatment.

' I I claim as my invention- 1. The'combination of a pair of crushing-rolls, feed-hopper, and plates, with two grooved distributing-rolls, D and E, one over the other, the upper roll having larger grooves than the lower one, substantially as described.

2. The combination of a pair of crushingrolls and feed-hopper A, with grooved distributing-rolls D and E, between the hopper and crushing-rolls, and the hopper-plates d and e, the lower roll, E, being about twice the diameter of the upper roll, D, substantially as [and for the purpose set forth.

' volve, the said roll E being about half the diameter of the crushing-roll F, and the roll D being about half the diameter of the roll E, substantially as and for the purpose set forth. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

H. F. SAINT REQUIER. Witnesses:

HRI. J EUMENT, ALFRED OoINE. 

